Introduction to の

The main use of the Japanese particle の in grammar is to say something about a word with another word. It therefore is also called the modifying noun because it modifies one word using the other. In this way in also indicates possession, for example when you want to say that something is yours. In this case, it can be translated as ‘of’ in English. If you for example want to say, that this is your book you say わたしのほん = my book (わたし = I, mine and ほん = book).

  • Main lesson: の modifies one word with another word, for example to indicate possession. Roughly translated, it means ‘of’ in Japanese

Here are some more examples

  それはサラの犬です  
  それはサラのいぬです  
  That is Sara’s dog  
         
  それ   That (demonstrative)  
  サラ   Sara  
  いぬ Dog  
  です   Is   
  中国の砂漠です  
  ちゅうごくのさばくです  
  It is the Chinese desert  
         
  ちゅうごく  (中国) Chinese  
  さばく  (砂漠) Desert  
  です   Is  
         

As you can see in the above two examples, the use of の is slightly different. In both cases, it modifies the second word with the first word. It is not just a desert, but the Chinese one and this is not just a dog, it’s Sara’s dog. But in the first example, it also indicates possession. In the example below it also indicates where something comes from. 

  イタリアのピザは一番です  
  いたりあのぴざはいちばんです  
  Italian pizza is the best  
         
  イタリア    Italian  
  ピザ    Pizza  
  いちばん 一番 The best  
  です   Is  

Letting the second noun out of it

As often in Japanese, you can let things out that should be clear from context. For example, if you are in the office and someone point and asks whose computer this is you can say: わたしのです (This is mine). 

  これはだれのコンピューターですか  
  Whose computer is this?  
     
  あ, わたしのです  
  ah, this (computer) is mine  
         
  これ This one  
  だれ Who  
  コンピューター Computer  
  です Is  
  Particle to turn a sentence into a question  
  わたし I  

Some more examples of the use of の

  私は数学の先生です  
  わたしはすうがくのせんせいです  
  I am a math teacher  
         
  わたし  I, me  
  すうがく 数学 Mathematics  
  先生 Teacher  
  すうがくのせんせい   Math teacher  
  です   Is  
  ほとんどの人がそのニュースを知ります  
  ほてんどのひとがそのニュースをしります  
  Almost everybody knows of that news  
         
  ほとんど    Almost, mostly  
  ひと People  
  ほとんどのひと   Almost everybody  
  その   That  
  ニュース   News  
  しります 知ります To know